20502867

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{227}}^1$

素因数の和:288

約数の個数: 64

約数和(自身を含む): 37822464

約数和(自身を除く): 17319597

約数列:

[1, 3, 7, 11, 17, 21, 23, 33, 51, 69, 77, 119, 161, 187, 227, 231, 253, 357, 391, 483, 561, 681, 759, 1173, 1309, 1589, 1771, 2497, 2737, 3859, 3927, 4301, 4767, 5221, 5313, 7491, 8211, 11577, 12903, 15663, 17479, 27013, 30107, 36547, 42449, 52437, 57431, 81039, 88757, 90321, 109641, 127347, 172293, 266271, 297143, 402017, 621299, 891429, 976327, 1206051, 1863897, 2928981, 6834289, 20502867]

約数ペア:

[(1, 20502867), (3, 6834289), (7, 2928981), (11, 1863897), (17, 1206051), (21, 976327), (23, 891429), (33, 621299), (51, 402017), (69, 297143), (77, 266271), (119, 172293), (161, 127347), (187, 109641), (227, 90321), (231, 88757), (253, 81039), (357, 57431), (391, 52437), (483, 42449), (561, 36547), (681, 30107), (759, 27013), (1173, 17479), (1309, 15663), (1589, 12903), (1771, 11577), (2497, 8211), (2737, 7491), (3859, 5313), (3927, 5221), (4301, 4767)]